please refer to the following code: 1726 Chemical pesticide includes chemical pesticide raw materials and chemical pesticide preparation, chemical pesticide preparation 17261 Chemical pesticide raw materials refer to chemical pesticide raw materials (raw materials) which are produced by chemical synthesis and have not been prepared or diluted; Chemical pesticides (technical drugs) include organophosphorus pesticides, such as pesticides, fungicides, herbicides and plant growth regulators, carbamate pesticides, pyrethroids, organochlorine pesticides, fumigants, acaricides, nereis, heterocyclic pesticides, substituted urea pesticides, organophosphorus and arsine pesticides, and organosulfur pesticides. Substituted benzene bactericide, heterocyclic fungicide bactericide, oxazole bactericide, inorganic bactericide, nematicide, benzene herbicide, amide herbicide, urea herbicide, organophosphorus herbicide, carbamate herbicide, diphenyl ether herbicide, triazole benzene herbicide, phenoxycarboxylic acid herbicide, sulfonylurea herbicide, heterocyclic herbicide, plant. Rodenticide original drug 17262 Chemical pesticide preparation refers to the pesticide preparation produced with the purchased pesticide original drug 1727 Biological pesticide and microbial pesticide include biological pesticide preparation and microbial pesticide 17271 Biological pesticide preparation refers to the utilization of living organisms (fungi, bacteria, insect viruses, Transgenic organisms, natural enemies, etc.) or their metabolites (pheromone, auxin, naphthylacetic acid, 2,4-D, etc.) are used to kill or inhibit agricultural pests. Include biological herbicide preparation, biological insecticide preparation, biological bactericide preparation and biological plant growth regulator preparation. Biological pesticide preparation, biological herbicide preparation, biological pesticide preparation, biological bactericide preparation, biological plant growth regulator preparation 17272 Microbial pesticides include agricultural antibiotics and living microbial pesticides. Agricultural antibiotics, live microbial pesticides